Graceful degration
[电] 故障弱化
🧩 词语组成解析
🗣️ 情景例句
If someone doesn't buy it before then,
如果在此之前没有人买走的话。
So he keeps on studying after his English classes in order to prepare for life in America.
所以他在英语课下课后还继续学习，为以后在美国生活做准备。
probably vertical, cliffs, and gentle sediment-covered terraces,
乃至垂直的峭壁和沉积物覆盖的缓和的阶梯地带，